GB2021455A - Process and device for controlling bending machines - Google Patents

Process and device for controlling bending machines

Info

Publication number
GB2021455A
GB2021455A GB7913642A GB7913642A GB2021455A GB 2021455 A GB2021455 A GB 2021455A GB 7913642 A GB7913642 A GB 7913642A GB 7913642 A GB7913642 A GB 7913642A GB 2021455 A GB2021455 A GB 2021455A
Authority
GB
United Kingdom
Prior art keywords
bending
value
punch
travel
programmed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7913642A
Other versions
GB2021455B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCHIFFBAU VEB K
Original Assignee
SCHIFFBAU VEB K
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DD20535278A external-priority patent/DD136458A1/en
Priority claimed from DD20916978A external-priority patent/DD139531A1/en
Application filed by SCHIFFBAU VEB K filed Critical SCHIFFBAU VEB K
Publication of GB2021455A publication Critical patent/GB2021455A/en
Application granted granted Critical
Publication of GB2021455B publication Critical patent/GB2021455B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/12—Bending rods, profiles, or tubes with programme control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/188—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by special applications and not provided for in the relevant subclasses, (e.g. making dies, filament winding)

Abstract

Process for controlling the bending of elongate products in bending machines by means of apparatus which bends to a mathematically defined shape which is stored in a programme, characterized in that assessment of the curvature of a shaped product at each bending, operation occurs by means of a gauging system which is coupled to a movable central bending punch and preferably indicates the travel of the punch, whereby the programmed total Nominal bending value is composed of the travel of the punch and an empirically or analytically determined resilience value, and the difference between the programmed resilience value and the resilience value actually produced is included in the total Nominal bending value for the next bending operation. <IMAGE>
GB7913642A 1978-05-12 1979-04-19 Process and device for controlling bending machines Expired GB2021455B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD20535278A DD136458A1 (en) 1978-05-12 1978-05-12 METHOD FOR CONTROLLING THE FORMING OF STABFOERMAL HALF-TOOLS IN BENDING MACHINES
DD20916978A DD139531A1 (en) 1978-11-20 1978-11-20 DEVICE FOR CONTROLLING THE FORMING OF STAFF BODIES IN BENDING MACHINES

Publications (2)

Publication Number Publication Date
GB2021455A true GB2021455A (en) 1979-12-05
GB2021455B GB2021455B (en) 1982-05-06

Family

ID=25747618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913642A Expired GB2021455B (en) 1978-05-12 1979-04-19 Process and device for controlling bending machines

Country Status (3)

Country Link
GB (1) GB2021455B (en)
NL (1) NL7901874A (en)
SE (1) SE7904115L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878369A (en) * 1986-09-09 1989-11-07 British Aerospace Public Limited Company Apparatus for forming elongate structural components
FR2678853A1 (en) * 1991-07-09 1993-01-15 Lorraine Laminage Method and device for controlling an operation of bending long metallurgical products
GB2310389A (en) * 1996-02-23 1997-08-27 Usui Kokusai Sangyo Kk Bending system for bending tube
NL1009984C2 (en) * 1998-09-01 2000-03-06 Centraalstaal B V Device for bending rafters.
EP1308223A2 (en) * 2001-11-05 2003-05-07 SCHÜCO International KG Simulating method of a 3-roll-bending process

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878369A (en) * 1986-09-09 1989-11-07 British Aerospace Public Limited Company Apparatus for forming elongate structural components
US4972696A (en) * 1986-09-09 1990-11-27 British Aerospace Public Limited Company Forming elongate structural components
FR2678853A1 (en) * 1991-07-09 1993-01-15 Lorraine Laminage Method and device for controlling an operation of bending long metallurgical products
GB2310389A (en) * 1996-02-23 1997-08-27 Usui Kokusai Sangyo Kk Bending system for bending tube
GB2310389B (en) * 1996-02-23 1999-02-10 Usui Kokusai Sangyo Kk Bending system for bending tube
NL1009984C2 (en) * 1998-09-01 2000-03-06 Centraalstaal B V Device for bending rafters.
WO2000012239A1 (en) * 1998-09-01 2000-03-09 Centraalstaal B.V. Device for bending frame sections
EP1308223A2 (en) * 2001-11-05 2003-05-07 SCHÜCO International KG Simulating method of a 3-roll-bending process
EP1308223A3 (en) * 2001-11-05 2004-09-22 SCHÜCO International KG Simulating method of a 3-roll-bending process

Also Published As

Publication number Publication date
NL7901874A (en) 1979-11-14
GB2021455B (en) 1982-05-06
SE7904115L (en) 1979-11-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee